The graph above displays results from subjects in a study who responded to a questionnaire on character and temperament. The subjects had a known genotype for the DRD4 gene (associated with novelty-seeking behavior). Results are shown for the CC group and the CT and TT genotypes as another group. In the graph, what do the light blue bars represent?
What will be an ideal response?
the variation of scores for each group
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Answer the following statements true (T) or false (F)
1. Glycolysis involves 10 enzyme-catalyzed steps, that can be grouped into three phases: energy investment phase, cleavage phase, and the energy liberation phase. 2. The electron transport chain consists of a series of redox reactions in which electrons are transferred to oxygen as the final electron acceptor. 3. Oxygen is an excellent final electron acceptor because of its low electronegativity. 4. NADH and FADH2 donate their electrons to protein complex I. 5. Ubiquinone is also known as coenzyme Q.
Why do sieve elements require companion cells?
What will be an ideal response?
For the clade of winged organisms, which of the following would be considered the outgroup?
a. insect b. bat c. eagle d. penguin e. honeycreeper
Brood parasites ensure their reproductive success by the following mechanisms EXCEPT ____.
A. producing eggs closely resembling that of the host B. producing a large number of eggs C. producing young that give off smells and sounds similar to those of the host D. making their host vulnerable to predation E. utilizing the host parental care mechanisms